Does Decreased Brightness Increase Your Phone's Battery Life?

How About an Experiment?

 

How do you measure the energy use in a phone? I’m sure there’s an app for that, but I don’t have that app. Instead, I tried something different. What if I charged my phone up to 100% battery and kept it plugged into the charger? In this case, I can assume that an increased load on the power charger is just due to an increased power use of the phone. Maybe this isn’t true, but I can assume it anyway.


Full article @Wired.com